An exploration of error handling in Swift: then, now, and soon.

A typealias can improve the readability of your codebase. Combine it with generics and see some common used examples to see how it can improve your code.

Last week we touched the entirely new topic on my blog. This week we will continue the Unit Testing subject. One of the smells of a good architecture is the ability to cover it with Unit Tests. Today we will talk about extracting Presentation logic into testable…

Pieces of advice to create complex Views, reusing a simple layout

Conceptually, I like asset catalogs. It makes sense to group images and metadata together, with a visual way to edit it all in Xcode.

In the beginning, Crusty In 2015, at WWDC, Dave Abrahams gave what I believe is still the greatest Swift talk ever given, and certainly the most …

In this tutorial, you’ll learn how to use GitHub, Travis, Jenkins and fastlane to make Continuous Integration part of your daily workflow.

In this article you'll learn how to format your code with SwiftFormat. A popular little library for formatting swift code.

How do you compare two version strings in Swift? For example, how can I check if version “2.2.5” is higher than “2.0.3” or that a version is at least “1.8.5”? As long as your version strings follow a consistent format it turns out to be not too hard.

🌡 Unit Tests I and you and many developers are too familiar with this level of testing, someone might know, someone might doing it everyday. But how to do it productivity? How to do it in a saving time? then it gonna need you practice a lot with Unit Tests....

When deadlines are tight and the product faces considerable changes, it's common for developers to make concessions in the project's quality to make sure it gets shipped in time. This leads to release anxiety - that stressful feeling where you're unsure if…

Introduction

In this article, I'll look at the the biggest problem with non-declarative views and how frameworks have slowly become more declarative, over time. I'll take a guess at what approach a declarative view framework from Apple might use – although keep in mind…

The purpose of this article is to describe and explore a foundational concept in Metal: vertex descriptors. Vertex descriptors are the glue between your application code (written in Objective-C or …

Pop quiz: in a UIButton, how do you set a padding of 10pt between the image and the title? I had to do this at work recently, and I was surprised at how hard it was to reason about. There are several posts talking about this topic (including this one which…

TL;DR : Just want the code? Click here This post assumes you have a basic grasp of how to use URLSession and that URLSession is asynchronous. There might be scenario where your app have to download external resource files from the internet, as URLSession…

Since time immemorial, iOS developers have been perplexed by a singular question: ‘How do you resize an image?’ This article endeavors to provide a clear answer to this eternal question.

Extensible in different ways

Feedback helps people know what an app is doing, discover what they can do next, and understand the results of actions. This week I am going to talk about the Haptic Feedback Engine which provided by Apple in most of the devices.

Self-documenting code in Swift makes your code easier to understand by using extensions, type aliases, and by not using trailing closures.